Figure 4. Pathological status of kidney graft after kidney transplantation (RTx).

After euthanasia on day 14 after RTx, kidneys were harvested and stained with azan stain for parenchymal fibrosis. Fibrosis was graded numerically as follows; (A): 0 = none, (B): 1 = minimal, (C): 2 = moderate, and (D): 3 = severe. In each slide, 20 fields were evaluated by four observers blinded to treatment (4×20 fields). Fibrosis of the group receiving kidneys preserved with ETK23 tended to be lower than that of the other groups, but the difference was not significant (p>0.05).